Fourteen-shaft distance-adjustable bolt tightening machine

Abstract

The utility model relates to a fourteen-shaft-distance-adjustable bolt tightening machine which comprises a box body, a first sliding seat, a servo motor driving assembly, a second sliding seat, an air cylinder assembly and a bolt tightening shaft body, wherein the second sliding seat and the air cylinder assembly are matched in a one-to-one correspondence mode. The box body comprises a bottom plate, and strip-shaped holes are formed in the bottom plate. The first sliding seats are oppositely distributed on the two sides of the strip-shaped hole in the width direction and can slide in the longitudinal direction relative to the bottom plate under driving of the servo motor driving assembly. And the second sliding seats are divided into two groups and are respectively arranged on the two first sliding seats. And under the driving of the air cylinder assembly, the second sliding seats which are transversely distributed at intervals can slide in the transverse direction relative to the first sliding seats. The bolt tightening shaft bodies are matched with the second sliding seats in a one-to-one correspondence mode, the lower portions of the bolt tightening shaft bodies are fixedly connected with the second sliding seats, and the sleeves can penetrate downwards to the positions below the strip-shaped holes. The bolt tightening device can adapt to the working condition that the current bolt distribution position is relatively complex, and the bolt tightening and assembling efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of bolt tightening technology, specifically to a fourteen-axis adjustable bolt tightening machine. Background Technology

[0002] In industrial assembly lines, bolts are often arranged in parallel at multiple locations. As the bolt type or location changes, the longitudinal spacing between two rows of bolts, and the lateral spacing between adjacent bolts in the same row, will vary considerably. Because the tightening shafts on existing bolt tightening machines are mostly fixed in position, or can only change the spacing synchronously in a single direction, they cannot handle the complex situation of varying bolt spacing in both the longitudinal and lateral directions. The work must be completed manually or by switching between different bolt tightening machines, which is time-consuming, labor-intensive, and wasteful of equipment purchase and maintenance funds. Utility Model Content

[0003] To solve the above-mentioned technical problems, the utility model provides a fourteen-axis adjustable bolt tightening machine, which can simultaneously adjust the longitudinal spacing between two rows of bolt tightening shafts and flexibly adjust the lateral spacing between two adjacent bolts in each row. It can adapt to the working conditions of the variable and diverse bolt positions in two parallel rows of bolts in existing industrial assembly lines, and help improve the efficiency of bolt tightening assembly.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a fourteen-axis adjustable bolt tightening machine, including a housing, a pair of first slides, a servo motor drive assembly, fourteen second slides, fourteen cylinder assemblies, and fourteen bolt tightening shaft bodies. The bolt tightening shaft bodies are arranged in a vertical direction.

[0005] The housing includes a base plate, a top plate, and multiple uprights supporting the base plate and the top plate. A strip-shaped hole is formed at the center of the base plate. Two first slides are respectively matched with the base plate by a longitudinally extending slide rail structure and are distributed opposite each other on both sides of the width of the strip-shaped hole.

[0006] The servo motor drive assembly is fixedly mounted on the base plate and can drive the two first slide blocks to slide synchronously relative to the base plate, moving closer to each other and further away from each other.

[0007] The fourteen second slides are divided into two groups and are respectively arranged on two first slides. The seven second slides arranged on the same first slide are distributed alternately in the lateral direction and are matched with the first slides by laterally extended slide rail structures.

[0008] The cylinder assembly is matched one-to-one with the second slide block, and can drive each second slide block to reciprocate relative to the first slide block in the lateral direction.

[0009] The bolt tightening shaft body and the second slide are matched one-to-one. The side of the second slide facing the strip-shaped hole extends above the strip-shaped hole and is fixedly connected to the lower part of the bolt tightening shaft body. This allows the sleeve located at the lower part of the bolt tightening shaft body to pass downward through the strip-shaped hole and extend below the strip-shaped hole.

[0010] When the first slide block reciprocates relative to the base plate, the second slide blocks distributed on both sides of the width of the strip-shaped hole can move closer to each other and further away from each other synchronously.

[0011] By driving the first slide block to reciprocate relative to the second slide block, the lateral distance between two adjacent bolt tightening shaft bodies can be adjusted, thereby achieving adjustment of the lateral distance between the sleeves located at the lower part of the bolt tightening shaft body.

[0012] Optionally, the servo motor drive assembly includes a servo motor, a gearbox, and a lead screw section that matches the output end of the gearbox. The lead screw section has two lead screw segments extending outward relative to the two longitudinal end faces of the gearbox.

[0013] Multiple support arm plates are formed on the base plate and are arranged relative to each other in the longitudinal direction. They can match the ends of the lead screw segments on the same side and play the role of supporting the free end of the lead screw segments, which can make the lead screw segments maintain a horizontal extension state in the longitudinal direction.

[0014] On each of the two first slide blocks, there is a flange plate that corresponds to and matches the two lead screw segments, so that the lead screw can drive the two first slide blocks to slide synchronously relative to the base plate.

[0015] The two lead screw segments extending in the longitudinal direction on the lead screw part are respectively matched with the flanges on the two first slide blocks to form lead screw slide block transmission mechanisms. When the lead screw part rotates, it can drive the two first slide blocks to move relative to each other in the longitudinal direction, so that the two first slide blocks can move closer to each other and further away from each other, thereby adjusting the longitudinal distance between the two rows of bolt tightening shaft bodies arranged opposite each other in the longitudinal direction.

[0016] Optionally, the cylinder body of the cylinder assembly is fixed on the second slide. A flange plate two, corresponding to and matching the second slide plate, is formed on the first slide, and the cylinder rod of the cylinder body is fixedly connected to the flange plate two. As the cylinder rod extends and retracts, it drives the second slide plate to slide laterally relative to the first slide plate, thereby adjusting the lateral distance between two adjacent bolt tightening shaft bodies.

[0017] The beneficial effects of this utility model are: this utility model can adjust the relative positions of the fourteen bolt tightening shafts in the horizontal and vertical directions respectively, so that it can efficiently adapt to the working conditions of the bolt positions in the two rows of bolts arranged on the existing industrial assembly line, which helps to improve the efficiency of bolt tightening assembly and reduce equipment procurement and maintenance costs. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a schematic diagram of the main structure of this utility model.

[0020] Figure 3 This is a side view of the structure of this utility model.

[0021] Figure 4 This is a bottom view of the structure of this utility model.

[0022] In the diagram: 10 housing, 11 bottom plate, 111 strip-shaped hole, 112 convex rail, 113 support arm plate, 12 top plate, 13 column, 14 vertical arm; 20 first slide, 21 edge plate one, 22 edge plate two; 30 servo motor, 31 lead screw; 40 second slide; 50 cylinder assembly; 60 bolt tightening shaft body, 61 sleeve. Detailed Implementation

[0023] The structures, proportions, and sizes shown in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, terms such as "upper," "lower," "front," "rear," and "middle" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0024] like Figures 1 to 4 The illustrated fourteen-axis adjustable bolt tightening machine includes a housing 10, a pair of first slides 20, a servo motor drive assembly, fourteen second slides 40, fourteen cylinder assemblies 50, and fourteen bolt tightening shaft bodies 60. All bolt tightening shaft bodies 60 are arranged vertically.

[0025] The housing 10 includes a base plate 11, a top plate 12, multiple columns 13 supporting and connected between the base plate 11 and the top plate 12, and multiple vertical arms 14. The columns 13 are positioned opposite each other on the lateral ends of the base plate 11 and the top plate 12, and the vertical arms 14 are positioned opposite each other on the longitudinal ends of the base plate 11 and the top plate 12 and are located in a laterally centered position. The top plate 12 and vertical arms 14 on the housing 10 can be connected to external equipment, enabling the fourteen-axis adjustable bolt tightening machine to perform lifting and lowering movements.

[0026] A strip-shaped hole 111 is formed at the center of the base plate 11. Two first slide blocks 20 are respectively matched with the base plate 11 by slide rail structures extending longitudinally, and are distributed on both sides of the width of the strip-shaped hole 111. The base plate 11 is provided with a plurality of protruding rail portions 112 corresponding to the first slide blocks 20, so that the two first slide blocks 20 can slide relative to the base plate 11 along the protruding rail portions 112.

[0027] The servo motor drive assembly includes a servo motor 30, a gearbox, and a lead screw 31 that matches the output end of the gearbox. The lead screw 31 extends forward and backward in the longitudinal direction. Support arms 113 facing each other are provided on the base plate 11, with the free ends of the lead screws matching the support arms 113 on the same side. Vertically upward-extending flanges 21 are formed on both first slides 20. The middle positions of the two lead screws extending forward and backward match the flanges 21 on the two first slides 20, forming a lead screw-slide transmission mechanism. The gearbox is fixed to the base plate 11, and the servo motor 30 matches the output end of the gearbox. The servo motor 30 can drive the lead screws on both sides to rotate simultaneously, causing the lead screws to push the two flanges 21, causing the two first slides 20 to slide synchronously relative to the base plate 11 (in the longitudinal direction), thus moving closer and further apart.

[0028] The fourteen second slides 40 are divided into two groups and are respectively arranged on two first slides 20. The seven second slides 40 arranged on the same first slide 20 are distributed alternately in the lateral direction and are matched with the first slide 20 by slide rail structures that extend in the lateral (left-right direction).

[0029] The cylinder assembly 50 corresponds to and matches the second slide block 40, enabling each second slide block 40 to reciprocate relative to the first slide block 20 in the lateral direction. The cylinder body of the cylinder assembly 50 can be fixedly mounted on the second slide block 40, while the first slide block 20 has a flange plate 22 corresponding to each second slide block 40, and the cylinder rod of the cylinder body is fixedly matched with the flange plate 22. As the cylinder rod of the cylinder body extends or retracts, the second slide block 40 can be driven to slide relative to the first slide block 20 in the left-right direction.

[0030] The bolt tightening shaft body 60 and the second slide 40 are matched one-to-one. The side of the second slide 40 facing the strip-shaped hole 111 extends above the (upper port) of the strip-shaped hole 111 and is fixedly connected to the lower part of the bolt tightening shaft body 60. This allows the sleeve 61 located at the lower part of the bolt tightening shaft body 60 to pass downward through the strip-shaped hole 111 and extend below the strip-shaped hole 111.

[0031] When the first slide block 20 reciprocates relative to the base plate 11 (in the front-back direction), the two rows of second slide blocks 40 distributed on both sides (front and back sides) of the width of the strip-shaped hole 111 can move closer and further away from each other synchronously, thereby adjusting the front-back distance between the front and back bolt tightening shaft bodies 60.

[0032] By driving the first slide block 20 to reciprocate relative to the second slide block 40, the lateral (left-right) distance between two adjacent bolt tightening shaft bodies 60 can be adjusted, thereby enabling adjustment of the lateral distance between the sleeves 61 located at the lower part of the bolt tightening shaft body 60.

[0033] The length (parameter in the transverse direction) and width (parameter in the longitudinal direction) of the strip-shaped hole 111 should be sufficient to provide enough travel distance for the bolt tightening shaft body 60 in the same column to move in the left and right directions respectively, and to provide enough travel distance for the bolt tightening shaft body 60 in the two columns to move back and forth.

[0034] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit it. Many aspects of this utility model can be improved without departing from the overall concept. Those skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A fourteen-axis adjustable bolt tightening machine, comprising fourteen bolt tightening shaft bodies arranged vertically; characterized in that: It also includes a housing, a pair of first slides, a servo motor drive assembly, fourteen second slides, and fourteen cylinder assemblies; The housing includes a bottom plate, a top plate, and multiple columns supporting the connection between the bottom plate and the top plate; a strip-shaped hole is formed at the center of the bottom plate; two first slides are matched with the bottom plate by slide rail structures arranged along the longitudinal direction, and are distributed on both sides of the width of the strip-shaped hole; a servo motor drive assembly is fixedly installed on the bottom plate, which can drive the two first slides to slide synchronously relative to the bottom plate, making movements of moving closer to each other and moving away from each other; The fourteen second slides are divided into two groups and are respectively arranged on two first slides; the seven second slides arranged on the same first slide are distributed alternately in the lateral direction and are matched with the first slides by slide rail structures arranged in the lateral direction; the cylinder assembly is matched with the second slides one by one and can drive each second slide to reciprocate relative to the first slide in the lateral direction. The bolt tightening shaft body and the second slide are matched one-to-one; the side of the second slide facing the strip-shaped hole extends to the top of the strip-shaped hole and is fixedly connected to the lower part of the bolt tightening shaft body; so that the sleeve located at the bottom of the bolt tightening shaft body can pass through the strip-shaped hole downward and extend to the bottom of the strip-shaped hole.

2. The fourteen-axis adjustable bolt tightening machine according to claim 1, characterized in that: The servo motor drive assembly includes a servo motor, a gearbox, and a lead screw that matches the output end of the gearbox; the lead screw has two lead screw segments that extend outward relative to the two longitudinal end faces of the gearbox. Multiple support arm plates are formed on the base plate, and the support arm plates are arranged relative to each other in the longitudinal direction and can match the end of the lead screw section on the same side. On each of the two first slide blocks, there is a flange plate that corresponds to and matches the two lead screw segments, so that the lead screw can drive the two first slide blocks to slide synchronously relative to the base plate.

3. The fourteen-axis adjustable bolt tightening machine according to claim 1, characterized in that: The cylinder body of the cylinder assembly is fixed on the second slide; a flange plate two is formed on the first slide that corresponds to and matches the second slide, and the cylinder rod of the cylinder body is fixedly connected to the flange plate two.

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